This paper reports magnetically recoverable Ag/Bi₂Fe₄O₉ nanoparticles (BFO NPs) using as a photoexcited catalyst. The Ag NPs are uniformly distributed on the surface of BFO NPs. Compared to BFO NPs, the decomposition rate of methyl orange for Ag/BFO NPs under the visible-light is greatly enhanced due to the high surface plasmon resonance and electron conductivities of Ag NPs. Moreover, Ag/BFO NPs have a higher saturation magnetization than BFO NPs, which makes them can be collected easily under magnetic fields. Therefore, Ag/BFO NPs are potential recoverable visible-light-driven photocatalyst for environmental pollutants degradation.

本文报道了用作光激发催化剂的磁性可回收的Ag / Bi ₂ Fe ₄ O ₉纳米粒子（BFO NPs）。Ag NP均匀地分布在BFO NP的表面上。与BFO NPs相比，由于Ag NPs的高表面等离子体激元共振和电子电导率，大大提高了可见光下Ag / BFO NPs的甲基橙分解速率。而且，Ag / BFO NPs的饱和磁化强度比BFO NPs高，这使得它们很容易在磁场下被收集。因此，Ag / BFO NPs是潜在的可回收的可见光驱动的光催化剂，可用于环境污染物的降解。